摘要
研究了不同淬火温度和回火温度对S135钻杆组织和力学性能的影响。试验结果表明:随着回火温度的提高,试验钢的屈服强度和抗拉强度下降,而塑性和韧性上升;淬火温度对试验钢性能影响不大;在880℃淬火、保温30 min,540~580℃回火、保温60 min,试验钢有较好的力学性能。
Investigated are the effects by different quenching and tempering temperatures on the microstructure and properties of the S135 drill pipe. The test results show that both the yield strength and the tensile strength of the pipe are decreased along with increasing of the tempering temperature,while in contrary its toughness and plasticity are going up. The quenching temperature just slightly affects the properties of the steel as tested. The tested steel shows good mechanical properties under the the conditions as quenching temperature:880℃,and holding time:30 min;tempering temperature:from 540℃ to 580℃ and holding time:60 min.
引文
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